58 SYNOPSES AND DESCRIPTIONS. 
Dromicus FLAVILATUS. 
Cope, 1860, Pr. Ac. N. Sc., Phil., 222. 
Habit moderately slender; head distinct from the neck, elongate, oval; 
tail 3.2 times in the total. Crown-shields nine. Internasals nearly quad- 
rate. Prefrontals longer than wide. Frontal three fourths as long as 
wide. Labials seven, third and fourth in the orbit, fifth higher than long, 
with the sixth separated by a narrow temporal from the parietal, seventh 
longer than high. Infralabials nine, four bounding the submentals. Nos- 
tril in the anterior portion of the divided nasal. Loreal very small, high 
as long. Oculars 1—2. Seales thin, without pores, in 17 series. Ventrals 
126. Subcaudals 77 pairs. 
A rich golden brown above, the scales of the two inferior rows on each 
side broadly gold-edged, the color of the back commencing on the third 
row. Ends of the scales of the vertebral row sometimes darker tipped. 
Head dark brown, darkest behind, with numerous but obscure paler 
vermiculations. Side of head paler, with a reddish-brown band from the 
rostral plate through the eye to the middle of the last labial. Labials 
whitish, with black dots on the posterior in oblique rows. Below white, 
lower labials sparsely black dotted. A pair of pale dots on the common 
occipital suture. Fort Macon, N. C. 
DRoMICUS MARGARITIFERUS. 
HERPETODRYAS MARGARITIFERUS Schlegel, 1837, Ess. Phys. Serp., 184.pt. IT; and Abbild. t. 44, fig. 19—20. 
DRoMICUS MARGARITIFERUS Giinther, 1858, Cat. Col. Snakes, 126. 
Elongate, moderately slender; head distinct from the neck, long, crown 
flattened, muzzle prominent; tail slender, near one half of the total length. 
Eye rather large, pupil round. Mouth deeply cleft, curved. Upper post- 
maxillary teeth large, isolated, smooth. Crown-shields nine. Prefrontals 
bent down to the loreal. Nasal divided. Loreal longer than high. One 
anteocular. Postoculars two, followed by two temporals. Labials nine, 
fourth, fifth, and sixth in the orbit, the three preceding the last large. 
Infralabials ten, sixth large. Submentals two pairs, posterior larger. 
Scales lozenge-shaped, in 17—19 rows, feebly keeled, outer two or three 
broader and smooth. Ventrals 154 (Schlegel), 115 (Duméril). Anal bifid. 
Greenish-yellow on flanks and below. All the scales bordered with. 
brown. The medial rows are described as black, with a whitish or 
yellowish center. Top of head yellowish-brown. Mexico and Central 
America, 
